G The Egg Man
Sustainable Newbie
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How may inches of 1/2 water line does it take to hold 1 gallon of water?
? for someone smart 1/2 line to gallon
- Thread starter G The Egg Man
- Start date
me&thegals
A Major Squash & Pumpkin Lover
Welcome, G!
I'd like to help you with your question, but I guess I don't understand what you're asking. Could you explain a bit?
me&thegals
I'd like to help you with your question, but I guess I don't understand what you're asking. Could you explain a bit?
me&thegals
freemotion
Food Guru
Oh, I think it is a math question, is that 1/2 inch diameter water pipe? Figure out the volume of 1/2 gallon of water and the corresponding volume in the 1/2" pipe? Sorry, don't know my formula's, and my dad is not around today. If no one answers, I'll ask him this weekend. If that is the question.
I would just get some pipe and fill it with 1/2 gallon of water and mark where it goes up to....
lazy, I know!
I would just get some pipe and fill it with 1/2 gallon of water and mark where it goes up to....
lazy, I know!patandchickens
Crazy Cat Lady
If 1/2" is the INSIDE diameter of the water line (if not, you'll have to redo the math yourself with the correct #s), then:
you want 1 gallon = 231 cubic inches
the area of a 0.5" diameter circle is (pi)(r^2) = 3.14 * 0.25 * 0.25 = 0.2 sq inches in cross sectional area
231 cubic inches = 0.2 sq inches times X length
X = 231 / 0.2 = 1155 inches = about 96 feet of the water line.
I wouldn't have guessed *quite* that much, so someone might want to check my work, but I don't see anything conspicuously wrong with it...
Pat, who would ask math-oriented DH but he's not home yet.
you want 1 gallon = 231 cubic inches
the area of a 0.5" diameter circle is (pi)(r^2) = 3.14 * 0.25 * 0.25 = 0.2 sq inches in cross sectional area
231 cubic inches = 0.2 sq inches times X length
X = 231 / 0.2 = 1155 inches = about 96 feet of the water line.
I wouldn't have guessed *quite* that much, so someone might want to check my work, but I don't see anything conspicuously wrong with it...
Pat, who would ask math-oriented DH but he's not home yet.
TanksHill
Super Self-Sufficient
Go Pat,
I have not use that formula in a gazillion years. I would have never rembered it. 
Oh, welcome G.
I have not use that formula in a gazillion years. I would have never rembered it. Oh, welcome G.
freemotion
Food Guru
96 feet? 
My lazy way would not have been so lazy or easy, after all!
My lazy way would not have been so lazy or easy, after all! 
Yes that is correct, as a rule of thumb 100 feet of 1/2" will hold 1 gallon of water. With each 1/4" size increment doubling that volume. 100' of 3/4" holds 2 gallons and 100' feet of 1" holds 4 gallons.
